Patents by Inventor Henry M. Denmark

Henry M. Denmark has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dome shaped animal shelter
    Patent number: 4802443
    Abstract: This invention relates to a dome-shaped animal shelter having a separable housing and base. A swivel arm tether attachment is connected to the top of the housing providing an essentially tangle free tether where the animal can roam anywhere within a radius of the length of the tether. The shelter is anchored to the ground by a spiral anchor means. The separable housing and base are held together by a rim band when assembled, but are easily disassembled for cleaning or moving. In a preferred embodiment, the housing and base are made from reinforced plastic.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: February 7, 1989
    Assignee: DAMCO Plastics Corporation
    Inventor: Henry M. Denmark